Burner-grate.



No. 744,883. PATENTED Nov. 24, 1903.

- J. P. SWARENS.

BURNER GRATE.

- APPLICATION FILED JULY 13,1903.

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Unite rawns Patented November 24-, 1903.

PAT NT BURNEPl -GRATE.

SPEQIEIGATION forming part of Letters Patent No. 744,883, dated November 24, 1903.

Application filed July 13, 1903. Serial No. 165,380- (Ilo model.)

:, have invented certain new and useful Improvements in Burner-Grates, of which the following is a specification.

The object of this invention is to provide a stove combining in a single article the properties and adaptations of wood, coal, and stoves burning hydrocarbon.

In the detail structure the improvement consists in a peculiar form of grate provided with a generator-chain her which receivesthe hydrocarbon and from which the latter is burned.

The grate may be used in connection with the ordinary forms of coal and wood stoves and coal and wood burned at the same time that the hydrocarbon is burned, or either of the above fuels may be burned alone.

For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction of the means for effecting the result reference is to be had to the following description and drawings hereto attached.

While the essential and characteristic features of the invention are susceptible of modification, still the preferred embodiment of the invention is illustrated in the accompanying drawings, in which Figure 1 is a perspective view showing a grate-bar of the type employed in the practical use of myinvention. Fig. 2 is a perspective View showing the. invention as applied to a different form of grate-bar. Fig. 3 is a top plan view of a grate-bar,. illustrating the ordinary flat type of bar and showing the invention applied thereto. Fig. 4 is a sectional view through the generator-chamber and ad jacent oil-cup, showing the peculiar form of the apertures from which the hydrocarbon is burned. Fig. 5 is a sectional view similar to Fig. 4, showing the generator provided with downwardly-extending apertures only. Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

As clearly shown in the first three figures of the drawings, the grate-bars 1 represent the several types of bars which are at present commonly in use. The generator-chamber 2 extends longitudinally of the grate-bar, and in the type illustrated in Fig. 1 said chamher is disposed about intermediate the upper and lower ends of the said grate. The chamher 2 is preferably cast with the body of the grate and is provided atintervals in the length thereof with apertures 3, from which the hydrocarbon is burned. The apertures 3, as will be noted by reference to the sectional views, Figs. 4 and 5, are downwardlyinclined, so as to prevent the passage of cinders, ashes, or analogous foreign substances into the generator-chamber when wood or coal is being burned in the stove. I deem it preferable in order to insure the prevention of the passage of cinders or ashes into the generator-chainber to provide a flange 4, which extends longitudinally of the grate, projecting upwardly from the generatorchamber and disposed adjacent the apertures therein. Spaced from the flange 4 and body of the generator chainher is a guard 5, which guard also extends longitudinally of the grate and approximately in front of the apertures 3. The guard and flange facilitate the promotion of the combustion of the hydrocarbon as it passes in the form of gas out of the apertures 3 in starting the fire in that the guard 5 serves to direct the flame after ignition of the oil in the oilcup 6, disposed beneath the generator-chamber and also integrally with the grate structure. The oil-cup 6 is filled with oil preparatory to starting the fire, and the oil is ignited so as to heat the generator-chamber. After the generator-chamber has been sufficiently heated the oil or whatever the hydrocarbon utilized may he is permitted to fill the hydrocarbon-chamber by opening the cock 7, which is disposed upon the pipe or tube 8, leading to the hydrocarbon-reservoir. The hydrocarbon as it passes into the generatorchamber 2 is converted into gas and escapes from the apertures 3 in this form. The hydrocarbon-reservoir 9 is located at a position distanced from the stove, so as to prevent liability of explosion. The tube which conducts the hydrocarbon to the grate is of re duced size at a point adjacent the grate, as shown at 10, so that the hydrocarbon will pass into the generator in a very small stream,

and therefore should the cock 7 be turned so as to be entirely open because of the reduced size of the conducting-pipe at 10 the likelihood of explosion will be further avoided.

When the invention is applied to circular grates or the like, the reduced portion 10 may be made of flexible tubing, so as to permit movement of the grate in shaking or otherwise.

As hereinbefore premised, it is designed that the grate shall be of integral structure relative to the generator-chamber 2 and the oil-cup 6, and for this reason in order to adapt the several types of stoves presently in use for the purposes of the invention it is only necessary to substitute the improved type of grate which is the subject-matter of my invention for the grate already in the stove.

The generator-chamber provided with a plurality of apertures and with a longitudinal drip-cup located beneath maybe used inside the fire-box separate from the grate.

Having thus described the invention, what is claimed as new is 1. The combination with a grate, of a tubutures therein, a guard also extended longi-' tudinally of said chamber in front of the apertures therein, and a drip-cup integrally formed with the grate and extending longitudinally beneath the aforesaid generatorchamber.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN F. SW'ARENS. [L. s] Witnesses:

F. E. GRAW, 0. E. LOFLAND. 

